From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8CD4DC433E0 for ; Wed, 10 Mar 2021 14:14:22 +0000 (UTC) Received: from lists.zx2c4.com (lists.zx2c4.com [165.227.139.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9BC9C64FDF for ; Wed, 10 Mar 2021 14:14:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9BC9C64FDF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=wireguard-bounces@lists.zx2c4.com Received: by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 0e391ec8; Wed, 10 Mar 2021 14:14:19 +0000 (UTC) Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [2a00:1450:4864:20::136]) by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id 84767061 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO) for ; Wed, 10 Mar 2021 14:14:17 +0000 (UTC) Received: by mail-lf1-x136.google.com with SMTP id 18so33670683lff.6 for ; Wed, 10 Mar 2021 06:14:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=GyZltwHUTd0ZPIfHD4xKsKOUtchCh4PlLUd4ETIiVbY=; b=usB3NPOjphlKz0gijnxcr8rFKjc7pN/k6EdTZoTuoK4rNrnYbTHMwP0hA5VnY0pcSR hTPbRFM6xf12pk0KvUXGkmEVpKJOyM8rKGwI7dE8iDSAB3pZ0AgKDbPbAkLSJ33AMrD2 ChlSZ6/JOdbk+Tlg7rUJtI0HJQhyFLpzUVDyRSlOvCis1X9rpCnZhRj95R1TDaJLdVGH n1KgBVRg7Gb62QBIMaJ5LXzJq3TmUUaniMEJyjeHQ2XY9ipA25vX1/GZveIhclCzo76X QTtBT9AXBLxE/V8Znu9mqD8YXMyVrYCCDgahQRiAfnuwrBC/UihiYIRTnVfjFhpNHKp2 65pw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=GyZltwHUTd0ZPIfHD4xKsKOUtchCh4PlLUd4ETIiVbY=; b=FDuDK6RciiI5u6rIFFJZYhfwvlp6Gn97SeNLPfx8+YJyKuiQf0oOZA1UyhYzMwruwf DUjM+gBGH+6tiJUlZhfASR0sji56sw8tvweBYCGJpL0NY3Bw7ExOwOWBwfeZ2vQhwXLd L1oD7mliPYKhdqzy5F3P8EFwW7HZ+Dqbvrf6aqSdj6cnoESlHuyEJhMk8uxQWymgJMGy 0dEt7y2B7xlW+O+196cyeJM/wkARkEtnZ7eS/mJ35/qFoJAOsf6Nvs7C10j9mZuScYLT jdUhhrLsTPyJAk70YMGc7uj5Pa3IJYxEjKcsRaMbIdVeY38d12mfJUzk8GCiev4zm1yx VKRQ== X-Gm-Message-State: AOAM531h6UDI+Yd5P6L2b1I8OUujy2YdZqwJJq9vjBigOv3t7YUqnKUq 70zrll3pak9yoZ64WBa7oo97x9uCA7AVU44eys0cd2I99ac= X-Google-Smtp-Source: ABdhPJwQgXOf9z+IVrGEVO7hwBnflkvk2OnwX/Tc5aA0ue9ozlAP+37mhrpwUA9JJuqzbkbJcsLxAMXp4CGyBY6nQAU= X-Received: by 2002:ac2:5fae:: with SMTP id s14mr2154055lfe.15.1615385657380; Wed, 10 Mar 2021 06:14:17 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: kay Date: Wed, 10 Mar 2021 15:13:40 +0100 Message-ID: Subject: Re: Windows: wintun MTU is not set To: "Jason A. Donenfeld" Cc: WireGuard mailing list Content-Type: text/plain; charset="UTF-8" X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" Thanks. The following code worked for me: luid := winipcfg.LUID(tun.LUID()) iface, err := luid.IPInterface(windows.AF_INET) if err != nil { return err } iface.NLMTU = 1302 err = iface.Set() if err != nil { return fmt.Errorf("failed to set MTU: %s", err) } On Wed, Mar 10, 2021 at 3:03 PM Jason A. Donenfeld wrote: > > Try using the object returned by luid.IPInterface(windows.AF_INET). Or > in your example, use AF_INET instead of AF_UNSPEC.